First, "Sethu" is a movie. Which one? There are multiple movies named Sethu. The most famous one is Sethu (1999), directed by Bala, starring Rajinikanth. It's a Tamil film, but I should verify that. Then there's a 2016 Sethu, directed by K. S. Ravikumar. Need to check which one is meant here because "isaimini" is a site that provides pirated movies. So the user is probably talking about the pirated version of a Sethu movie.